/*wheat.c -- 指数增长*/

#include "stdio.h"

#define SQUARES 64 //棋盘中的方格数

int main(void){
    const double CROP = 2E16; //世界小麦年产谷粒数
    double current , total;
    int count = 1;

    current = 2.0 * current;
    total = total + current;/*更新总数*/

    printf("count:%d current:%e, total:%e,%12.2e",count , current, total, total /CROP);

    return 0;
}